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An electron (mass = 9 xx 10^-5 kg charge...

An electron (mass = `9 xx 10^-5 kg` charge = `1.610^-510^-19 C`) moving with a very high velocity of `10^6 m//s` enters a magnetic field. If it describes a circle of radius 0.1 m, then the strength of magnetic field must be

A

`4.5 xx 10^-5T`

B

`1.4 xx 10^-5T`

C

`5.6 xx 10^-5T`

D

`2.6 xx 10^-5T`

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CHETANA PUBLICATION-Magnetic Fields due to Electric Current-Exercise
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